Carton



J. IACOBITTI March 1, 1932.

CARTON Filed Dec. 17. 1929 g INVEETORZ fimi wgffa PM ATTORNEYS.

/4 FlijiJ-J. 7 8 l3 Patented Mar. 1, 1932 UNITED STATES PATENT OFFICE JOSEPH IAGOBITTI, OF CROCKETT, CALIFORNIA I CARTON Application filed December 17, 1928. Serial No. 414,697.

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A further object of my invention is to provide an improved interlocking arrangement of at least two of the flaps which will facilitate a gluing of the flaps together without fear of contaminating the contents of the carton durin the gluing operations.

Other 0 jects and advantages of my inven tion will be in part pointed out and in part evident from the following description taken in connection with the accompanying drawings wherein I have shown by way of illustration and not of limitation a preferred embodiment thereof.

In the drawingsi Fig. 1 is a fragmentary, perspective view" with parts broken away, showing the comonent parts of my improved closure memton blank before it is folded, and

Fig. 3 is a partial vertical, sectional view showing the interlocking arrangement of the flaps. a

Before proceeding with a detailed descrip which projected toward each other half way across the carton, over which other flaps were arranged to be folded and glued. This arrangement was found to work very satisfactorily', particularly for; the bottoms of such cartons, as the materialwithin the cartons served to hold the inner or short flaps in a plane extending across the bottom of the Fig. 2 is a partially developed view showing the arrangement of the flaps upon the carcarton, so that when pressure was applied to the remaining flaps in the luing operation, a gluing of the flaps-would e efi'ected. However, in the case of the upper or top end of the .carton, since the material in the carton usually settled away from the inner fla s, there was nothing to support the short .aps and to hold them into contact with the overlap ping flap's and, as a result, a poor sealing of the carton resulted. Under these conditions there was also danger of the contents of the carton becoming contaminated by the glue or otherv sealing material. In other words, with the straight flaps of the type commonl used in prior art devices there is a tendency or the inner flaps to sag inwardly during the gluing operation and, as a result, the gluing was imperfect and the carton became unsealed and often the glue oozed into the sugar. By an interlocking arrangement of at least two of the flaps in a manner as will hereinafter appear, I have provided an arrangement wherein the inner flaps tend to support eachother so that there will be no inward sagging thereof, even though the carton is not completely filled, and as a result the carton may be perfectly sealed during the gluing process.

In the drawings, 10 designates the body of a carton which is preferably of cardboard or other. similar material. Formed integrally upon the-ends of the carton 10, I show oppositely disposed flaps 11 and 12 which will be described in greater detailhereinafter. These flaps are shown as extending from the narrow sides of the carton 10. Arranged at right-angles to the flaps 11 and 12 I also provide two additional flaps 13 and-14 which'are adapted to fold over the flaps 11 and 12 when the package is sealed. The flaps 11 and 12 in this embodiment of my invention are pro vided respectively with outwardly extending tongues 15 and 16 which project over embossed portions 17 and 18 also formed respectively upon the flaps 11 and 12.

With this arrangement of the overlapping tongues 15. and 16 in conjunction with the embossed portions 17 and 18, it will be readily seen that, when the flaps 11 and 12 are folded intothe position shown in Fig. 1, their outer surfaces will be held in substantially a fiat plane extending across theend of t-he'package. With this arrangement, it will also be readily seen that when either of the flaps 13 contemplated by my invention are filled,

I closed, and sealed by machinery in an automatic manner, as the packing, closing and sealing of packages of this type by a machine requires that the top closure be made while that particular end is uppermost and at a time when, due to the packing characteristics of the material enclosed, the flaps 11 and 12 are in most cases unsupported, as previously suggested, by material contained in the carton.

By referring to Fig. 2, it will be seen that the application of my improvement to a carton blank does not entail any extensive modification of an ordinary carton blank, practically the only outstanding difference over that of a standard cartonbeing in the provision of the tongues 15 and.16 and the embosised portions 17 and '18 upon the flaps 11 an 12.

By referring to Fig. 3, which is a section taken through the package at the point correvjection or tongue 16 upon the flap 12. This view also clearly indicates the maner of interlocking the flaps 11 and 12- and shows them to be supported in this interlocking manner in a substantially flat plane over which the flaps 13 and 14 may be folded, as here illustrated.

While I have, for the sake of clearness and in order to disclose my invention so that the same can be readily understood, described and illustrated specific devices and arrangements, I desire to have it understood that this invention'is not limited to the specific means disclosed but may be embodied in other Ways that will suggest themselves, in view of this broad disclosure, to persons skilled in the art. It is believed that this invention is broadly new and it is desired to claim it as such so that all such changes as come within the scope of the appended claims are to be considered as part of this invention.

Having thus'described' 'my invention, what I claim and desire to secure by Letters Patent is 1. An end closure for cartons comprising a plurality of overlapping flaps, one extending from each side'of the carton, at least two of said flaps having embossed portions over which a portion of the opposite flap may engage, whereby said flaps will be held in sub- .stantially the same plane.

2. In an end closure for cartons of the type which is permanently sealed by an adhesive, the combination of a pair of oppositely disposed flaps having embossed and overlapping portions which co-operate to retain the flaps in a plane extending across the end of the carton, whereby a gluing of other flaps thereupon will be facilitated.

3. A closure for the top end of granular material containing cartons comprising a pair ofoppositelydisposed flaps having interlocking projections extending from opposite sides thereof and embossed portions adjacent thereto for the reception of said interlocking portions, whereby a substantially flat surface will be presented by saidtwo interlocking portions, said closure also consisting of other flaps at right angles to said first flaps adapted to be glued in their closed position upon 4. A carton closure of the character described comprising a pair of flaps hinged to opposite sides of a carton and adapted to be swung toward-each other whereby their inner ends will engage and close the carton, a projecting tongue on one side of the inner end of one flap, a similar tongue on the opposite side of the inner end of the other flap, said tongues being adapted to overlie-a portion of the flaps upon normal closing thereof, and an embossed portion oneach flap to receive the overlying tongue of the other.

5 A carton closure of the character described comprisinga pair of flaps hinged to opposite sides ofa carton and adapted to be swung toward each other, whereby their inner-ends willengage and close the carton, one part of each flap being longer than, an-.

other part thereof, a longer part of each flap being opposite a shorter art of the other flap, the sum of the lengt s of a short part on one flap and a short part on the other flap being notgreater than the distance between the hinged connections of said flaps. to said carton and the sum of the lengths of 'a long part on one flap and along part on the other flap being greater than the distance between the hinged connections of said flaps to" said carton, whereb concurrent swinging together of said aps will cause a longer part on one flap and a short part on the other flap being not greater than the distance between the hinged connections of said flaps to said carton and the sum of the lengths of a long part on one flap and along part on the other flap being greater than the distance between 5 the hinged connections of said flaps to said carton, whereby concurrent swinging together of said flaps will cause the longer part' of each flap to overlie the shorter'part of the other flap, the longer and the shorter parts of each flap being substantially each onehalf the Width of said flap.

- JOSEPH IAOOBITTI. 

